Download - Catalogue Skydome En
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skydome
R E U S A B L E F O R M W O R K I N A B S F O R W A F F L E S L A B S
• INNOVATIVE• LIGHT• REUSABLE
system for two-way ribbed slabs
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SLABS
By wisdom the house shall be built, and by prudence it shall be strengthened.
(Proverbs, Old Testament)
SKYDOMEVISION
A safe, healthy and comfortable house, which can resist over time
is not a dream... today it is possible!
Just choose the best ally: ABS. It is an extraordinary material, which light-
en the structure while making it robust: these characteristics can make
the difference in case of a earthquake.
Unlike other traditional construction materials, ABS does not absorb wa-
ter and therefore it does not release moisture over time: with it your house
will stay dry and comfortable.
Moreover, it is a plastic recycled material which respects the environment.
A HEALTHY HOUSE IS IMPORTANT BUT IT IS NOT ENOUGH.
IT MUST ALSO BE SAFE. GEOPLAST CARES ABOUT IT.
Geoplast S.p.A. in Green Building Council Italia,
The Network of Green Building.
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N H2
C
acrylonitrile 1,3-butadiene
styrene
CH2
CH2
CH2
SKYDOME | ABS
SKYDOMEFORMWORK INTECHNOPOLYMERSKYDOME is a system of modular formwork
in plastic used to build two-way ribbed slabs
in residential and commercial buildings.
The system was designed to decrease the
weight of traditional full-concrete slabs. The
dome-shaped forms create a matrix of voids
surrounded by orthogonal ribbing, produc-
ing a two-way configuration very suitable for
large-spanning slabs.
Why ABS(Acrylonitrile Butadiene Styrene)
High mechanical strength •
Shock resistance •
Thermal stability •
(-30°C / + 70°C)
Very high surface quality •
Recyclable material •
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SLABS
SKYDOME
ADVANTAGES
Recoverable formwork system for the realization of
bi-directional waffle slabs with large spans
seismic
resistance
SKYDOME hollowed
slab reduces the mass of
the structure producing
considerable advantages
in seismic performance
lightness
The composing elements
are very light and can
be easily installed and
handled
reuse
ABS plastics does not
stick to concrete, thus
dismantling is extremely
easy making the formworkvery quickly available for
the next cycle
large spans
SKYDOME system makes
it possible to design slabs
spanning up to 13 m withoutdrop beams or other
protruding elements
architecture
The waffle slab is
pleasing to the eye and
can be left exposed,
creating aesthetically
enjoyable environments
acoustics
The shape of the
domes reduces sound
waves, improving the
acoustics of the structure
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SIZE
Base 750 x 750 mm
Heights 200 - 250 - 300 -350 - 400 mm
SKYDOME MATERIAL
Acrylonitrite Butadiene Styrene ABS
Coefficient of thermal expansion 0.05 mm/m/°C
BEAM AND CUBETHESE TWO ITEMS COMPOSE
THE SUPPORTING STRUCTURE OF THE DOME
Light and easy to handle
Fits onto standard H20 timber beams
Resistant and reusable
MADE OF ABS, EASILY CLEANSED
WITH WATER, READY FOR REUSE
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SKYDOME | THE FORMWORK
75 cm
7 5 c m
75 cm
70 cm
70 cm
7 0 c m
2 0 -4 0
c m
SKYDOME
THE DOME
REUSABLE
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SLABS
actual size (mm)
material
weight (kg)
package dim. (mm)
Nr. pieces per pallet
SKYDOME
H300
75 x 75 x H30
ABS
5.61
75 x 150 x H240
100
SKYDOME
H350
75 x 75 x H35
ABS
5.93
75 x 150 x H250
100
SKYDOME
H200
75 x 75 x H20
ABS
4.83
75 x 150 x H231100
SKYDOME
H400
75 x 75 x H40
ABS
6.25
75 x 150 x H255
100
SKYDOME
H250
75 x 75 x H25
ABS
5.15
75 x 150 x H236100
Items and accessories
DIMENSIONAL
TABLES
actual size (mm)
material
weight (kg)
package dim.(mm)
Nr. pieces per pallet
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SKYDOME | DIMENSIONAL TABLES
actual size (mm)
material
weight (kg)
package dim. (mm)
Nr. pieces per pallet
actual size (mm)
material
weight (kg)
package dim. (mm)
Nr. pieces per pallet
CUBE
C120
BEAM
T120
15 x 15 x H10
ABS
1.61
75 x 120 x H210
500
14 x 15 x H10
ABS
1.60
75 x 120 x H216
200
CUBE
C160
BEAM
T160
19 x 19 x H10
ABS
1.92
100 x 120 x H210
500
18 x 75 x H10
ABS
2.21
75 x 120 x H218
120
CUBE
C200
BEAM
T200
23 x 23 x H10
ABS
1.92
100 x 120 x H220
300
22 x 75 x H10
ABS
2.74
75 x 120 x H219
100
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TIMBER BEAMS
SKYDOME CUBE
SKYDOME DOME
PROP FORK
TIMBER INFILL
SKYDOME BEAM
1
1
3
5
7
2
4
6
2
3
4
5
6
7
STEEL PROP
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SLABS
ITEMS AND
ACCESSORIES
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SKYDOME | SPECIAL APPLICATION
BEAM TF120 TF160 TF200
CUBE CF120 CF160 CF200
FLATSYSTEM
In combinationwith supporting decksSKYDOME FLAT can beinstalled on a flat slabformwork, which becomesa supporting deck for theSKYDOME system items.SKYDOME FLAT beamsand cubes were specificallyengineered for this applica-tion, housing the standardSKYDOME domes. The fi-nal result - a two-way waf-
fle slab - is identical to theone obtained by standardSKYDOME elements. Allsystem items are easy todismantle and are cleansedjust with water before be-ing ready for reuse. The ex-cellent smooth finish canbe left in sight without needfor a suspended ceiling.
Walkable formwork surface Does not suffer weathering
Light and easy to handle
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SLABS
LARGESPANS
Reusable formworkfor slabsSKYDOME system allow the
realization of two-way hol-
lowed slabs which reduce the
use of concrete, thus decreas-
ing the self weight of the struc-
ture. SKYDOME reusable ele-
ments are used to form deckson which the concrete can be
poured. Once the concrete
has cured, SKYDOME will be
removed, thus obtaining a
smooth and pleasing ceiling
often left exposed by design.
This formwork system is used
to realize large-spanning rein-forced concrete slabs..
Safe workSmooth results
Reusable formwork
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SKYDOME | APPLICATIONS
MULTI-LAYERBUILDINGS
The self-weight of con-
crete slab formed with
SKYDOME is up to 30%
lower than a full concrete
slab. This is a distinct ad-
vantage as it reduces the
the oscillation of a build-
ing during an earthquake
thus increasing its struc-
tural resistance. Moreover
the weight reduction of
the slab allows design and
cost advantages for the
overall concrete frame.
Seismicadvantages
Reduced seismic massLighter concrete frame
Light and easy to handle
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SLABS
MULTI-STOREYCAR PARKS
Simplified passage of underground utilitiesA waffle slab formed
with SKYDOME virtu-
ally eliminates the need
for drop beams and col-
umn heads. This makes
the soffit completely
flat removing all obsta-
cles to the passage of
tubes, plumbing and all
systems, making their
installation easier and
more economical.
Beams of same depth as slabSoffit without dropped elements
More flexibility in rc frame design
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SKYDOME | APPLICATIONS
CLASS
ROOMS
LECTURE
HALLS
MEETING
HALLS
SCHOOL
CANTEENS
STUDY
HALLS
PUBLIC
BUILDINGS
ACOUSTIC
PERFORMANCE
SoundabatementThe characteristic domeshape of SKYDOME waffleslab provides a consider-able advantage in terms ofnoise reduction. The shapeof the cavities in the slab
refracts sound waves thusproducing noise absorb-tion and an improvementof the acoustics within a
building. This is particu-larly important in environ-ments such as schoolsor classrooms where thenoise otherwise tendsto reverberate reducing
speech intelligibility, ren-dering the room less pro-ductive for learning.
Ideal for class roomsNoise reductionBetter acoustics
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A B
C
SLABS
A 200+200 kg/m2
B 400+300 kg/m2
C 600+300 kg/m2
Design clear span (m)
S l a b t h i c k n e s s
( c m )
Example
Example
i
70T T
H
H 1
PRELIMINARYDESIGN
Slab depthcalculationBased on the design span and the imposed load it ispossible to make a preliminary assessment of the required thickness of a SKYDOME slab, as shown in
the chart to the right.
For a load of 600+300 kg/m 2 (live + dead loads) and clearspans (distance between columns) of 8m, the slab thick-ness is approximately 350 mm (dome + topping slab).
In the case of particular loads or specific design con-straints the Technical Department of GEOPLAST is avail-
able for custom modeling and calculation.
Concreteconsumption
The table to the left allows to calculate theconcrete consumption and consequentlythe self-weight of the floor according to theheight of the dome and the width of the ribbing.
For a slab of 300 + 50 mm (300 mm dome +50 mm topping slab) with ribbing width of160 mm, the concrete consumption is 0.189m3/m2 and the self-weight is 472.50 kg/m2.
ITEM
Ribbing width
(T)
cm
On centres
(I)
cm
Concrete con-
sumption ribbing
m3/m2
Concrete consumption of the slabm3/m2
Topping slab
depth
H1 = 50 mm
Topping slab
depth
H1 = 100 mm
Topping slab
depth
H1 = 150 mm
SKYDOME
H200
12 82 0.080 0.130 0.180 0.230
16 86 0.091 0.141 0.191 0.241
20 90 0.100 0.150 0.200 0.250
SKYDOME
H250
12 82 0.099 0.149 0.199 0.249
16 86 0.113 0.163 0.213 0.263
20 90 0.125 0.175 0.225 0.275
SKYDOME
H300
12 82 0.123 0.173 0.223 0.273
16 86 0.139 0.189 0.239 0.289
20 90 0.153 0.203 0.253 0.303
SKYDOME
H350
12 82 0.151 0.201 0.231 0.301
16 86 0.169 0.219 0.269 0.319
20 90 0.185 0.235 0.285 0.335
SKYDOME
H400
12 82 0.185 0.235 0.285 0.335
16 86 0.205 0.255 0.305 0.355
20 90 0.222 0.272 0.322 0.372
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SKYDOME | INSTALLATION
SKYDOMEDISMANTLING
SKYDOMEINSTALLATION
2
2
1
1
After the creation of the supporting system (steelprops + timber beams) the beams and cubes in ABSare installed in order to build a regular grid where thedomes are to be placed. As the grid is created, thedomes will be installed, too.
After 6-7 gg from the pour, it is possible to dismantlethe SKYDOME system removing in sequence steelprops, timber beams, cubes in ABS and beams in
ABS. The dismantling is done working from below,in complete safety.
Working from below, i.e. in maximumsafety, the SKYDOME domes are in-stalled in the previously created. seren-dole all’interno del reticolo precedente-mente creato. Once the first elementsare in place the system is walkable.
After having removed the first two rows ofbeams and cubes in ABS, remove also theSKYDOME domes. After the dismantling, it is
necessary to post-prop the slab until full cur-ing of the concrete.
Geoplast Technical AssistanceThe Geoplast Technical Department ensures the necessary support at every stage of the construction. After analyzing the specifications and design constraints of
the project, our technical staff will design the most suitable formwork layout, also including any accessory items. If necessary, on-site assistance can be agreed
upon to follow installation, pour and dismantling operations. www.geoplast.it
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GEOPLAST S.p.A.35010 Grantorto PD - Italia - Via Martiri della Libertà, 6/8
tel +39 049 9490289 - fax +39 049 9494028
e-mail: [email protected] - www.geoplast.it r e v . 0 0 0 - 0 6 / 2 0 1 4
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